My wife, Carol, and l hit three National Parks in three days. Our base was on the east side of Zion National Park. Day one was Zion. I have to say this was our favorite, because of the diversity of landscape, geology and how easy it was to see a lot of spectacular views. Day two was Bryce Canyon. Fantastic! The hiking can be strenuous, as you go down into the canyon, then up. It's like being on another planet, Mars, perhaps. The colors and shapes of the hoodoos are mind blowing. Day three was the North Rim of The Grand Canyon. You have to actually view it with your own eyes. Photography cannot show the vast awesomeness of it. I did try though. If you decide you'd like to try this, plan on a lot of driving, but through mesmerizing, BIG, country.